CODEWITHSUNDEEP
dockerflutterubuntu-18.04chmod
Aurimas Deimantas
Aurimas Deimantas

Reputation: 771

Cannot get flutter running in Docker

My Dockerfile

FROM ubuntu:18.04

# Project files
ARG PROJECT_DIR=/srv/api
RUN mkdir -p $PROJECT_DIR

WORKDIR $PROJECT_DIR


# Update
RUN apt-get -y upgrade
RUN apt-get update

RUN apt-get install -y xz-utils
RUN apt-get install -y curl
RUN curl https://storage.googleapis.com/flutter_infra/releases/stable/linux/flutter_linux_v1.7.8+hotfix.4-stable.tar.xz -o /flutter.tar.xz
RUN tar xf /flutter.tar.xz 
#RUN mv flutter /srv/api/flutter
RUN ls /srv/api/flutter
RUN chmod a+x /srv/api/flutter
RUN flutter doctor

# Install Flutter dependencies
RUN flutter upgrade
RUN flutter packages pub global activate webdev
RUN flutter packages upgrade


# Copy everything to Docker
COPY ./ ./

Fails at RUN flutter doctor

If I put in path /srv/api/flutter I receive error flutter: not found. If I put in path /usr/local/bin/flutter I receive error flutter: Permission Denied.

I tried putting it in regular directory and in /usr directory. Both ways have failed. I tried searching about it but nothing seems to be working.

How can I fix it?

Upvotes: 1

Views: 2283

Answers (1)

masseyb
masseyb

Reputation: 4150

flutter is available in the ./bin/ directory of the flutter package. Slightly modified Dockerfile:

FROM ubuntu:18.04

ARG PROJECT_DIR=/srv/api
ENV PATH=/opt/flutter/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

RUN apt-get update && \
    apt-get install -y \
        xz-utils \
        git \
        openssh-client \
        curl && \
    rm -rf /var/cache/apt

RUN curl -L https://storage.googleapis.com/flutter_infra/releases/stable/linux/flutter_linux_v1.7.8+hotfix.4-stable.tar.xz | tar -C /opt -xJ

WORKDIR ${PROJECT_DIR}
COPY ./ ./

RUN flutter doctor
RUN flutter upgrade
RUN flutter packages pub global activate webdev
RUN flutter packages upgrade

This example extracts the flutter package to /opt and sets /opt/flutter/bin in the $PATH - the flutter executable is at /opt/flutter/bin/flutter.

Note:

  • WORKDIR creates the directory if it doesn't already exist - removing the RUN mkdir -p $PROJECT_DIR removes a layer from the final image (RUN, COPY and ADD create layers).
  • Combined the apt-get update && apt-get install -y ... and removed the apt-get upgrade for reasons stated in the documentation.
  • Split the packages to install on multiple lines because it's easier to see what changes in a diff imo.
  • Combined the curl | tar.
  • Removed the ls /srv/api/flutter and chmod a+x /srv/api/flutter RUN's.

Upvotes: 2

Related Questions